Dumping-wagon.



N6. 863,666. PATBNTED AUG. 13,---19o7. BELNET..

DUMP'ING WAGON.

APPLIUATION FILED oom. 1966.

I if (jig. 4 im wmmmnl: Nokms PErERs co., 4wnsmmz-mw, D. c.

Cil

PETER BLATT, OF ALLEGHENY, PENNSYLVANIA.

DUMPING-WAGON.

oecicaton of Letters Patent.

fatented Aug. 15, 1907.

Application filed October 5,1906. Serial No. 337.573.

.To all whom it may com-em:

lle it known that I, PETER BLATT, a citizen of the United States ofAmerica, residing at Allegheny, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inDurnping'Yagons, of which the following is a specilication, referencebeing had therein to ing drawings. E

This invention relates to dumping wagons, and it is designed as animprovement on the wagon shown and described in United States LettersPatent No. 799,588, granted to ine under date of September l2, 1905.

In the wagon shown in the patent above referred to, the bottom thereofconsists of two hinged doors, and novel means are provided for openingand closing said doors.

The present invention aims to provide improved means for operating thehinged doors of the wagon whereby one door closes slightly in advance ofthe other, to insure a close and snug closing of the doors withoutliability of clogging the`spac'e between the meeting edges of the doors.I

The construction of the improvement will be fully described hereinafter,in connection with the accompanying drawing which forms a part of thespecification, and its novel features will be defined in the appendedclaims.

In the drawing: Figure l is a side elevation of a dumping-wagonconstructed in accordance with the invention; Fig. 2 is a bottom planview thereof; Fig. 3 is an elevation of the front end of the wagon; Fig.4 is a similar view of the rear end thereof, and Fig. 5 is a detailelevation of the mechanism for controlling the winding and unwinding ofthe cable or chain employed.

The wagon body comprises oppositely-inclined side boards l, and inclinedend boards 2, said` boards forining a hopper-shaped body. To each of thesides I, at the lower' edge thereof is secured by hinges 3, a door 4 and5.

The inner edge of one door is provided with a longitudinal cleat 6adapted to overlap the confronting edge of the other door when the doorsare closed. The doors on their underneath sides, near each end, andadjacent their meeting edges, carry brackets l0, in which are journaledpulleys 7 and 9 serving as sheaves for the respective strands orportions of the chain'or cable.

Upon the front end board 2 are secured brackets ll, within which isjournaled a shaft l2, one part 13, of which is of greater diameter thanthe other portion I4, of said shaft. To the .enlarged part of the shaftl2, is attached one end of a cable or chain, as shown at the point l5,and said cable passes down under the pulley 7 at the front end of thedoor 4, thence along underneath said door and under pulley 7 at the rearend thereof, thence upward over a pulley 16, down under pulley 1G andover pulley I6 all journaled in a bracket `l7,

the accompanylever 22, to re-wind the ends of secured upon the rear endboard 2. The cable then passes down under the pulleys 9, carried by thedoor 5, thence upward over a pulley 18, journaled upon the front endboard 2, then under another pulley I9, also journaled upon the front endboard, thence upward to the smaller end of the shaft l2, where it issecured as shown. Any equivalent guide may be substituted for thepulleys 18 and I9.

To secure the doors in their closed position, and to elevate them whenrequired, I provide a ratchet whecl 2l, fixed upon the shaft l2, and anoperating lever 22, loosely mounted upon the shaft l2, adjacent to theratchet wheel, and provided with a pivoted pawl 23, adapted to engagethe teeth of the ratchet wheel, and provided with a weighted arm 24.

Secured upon the front end board adjacent to the ratchet wheel 2], is abracket 25, in which is jonrnaled a V-shaped double pawl 2G. The lowerarm of this pawl is normally held in engagement with the ratchet wheelby gravity, and said arm is elevated out of engagement by a beveled lug27 projecting from the operating lever 22, when the lever is movedbackward. The doors are held in closed position by the pawls 23 and 2G,and when it is desired to release the doors the lever 22, is movedbackward causing the lug 27 to engage the upper arm of the double pawl2G, and slightly ele vate said pawl, without disengaging the pawl 23,from the ratchet wheel. The engagement of the lug 27 with the upper armof the pawl 2G, causes said arm to strike the pawl 23, thus releasing itfrom engagement with the ratchet wheel. The further rearward movement ofthe lever 22, will bring the lug 27, still further under the upper armof the double pawl, thus releasing the lower arm from the ratchet wheel,when the weight of the load upon the doors will open the doors, thecable unwinding from the shaft.

The mechanism above described for operating the doors is similar to thatdisclosed in my Patent #799,588, heretofore referred to. I desire it tobe understood however, that I do not conne myself in this application tothis form of door actuating mechanism, as in my Patent #823,253 of lIunel2, 1906, for dumping I wagons, I show 4and claim a different form ofdoor operating mechanism which I may and do employ in connection withthe form of wagon shown in this application. To close the doors theshaft is rotated by the the cable upon said shaft.

It will be obvious from the illustration in Figs. 2 and 3 of thedrawings, that the door 4 will be drawn up in advance of the door 5, asthe portion I3 of the shaft l2, opposite the\door 4, upon which thecable winds, is of greater diameter than the portion 14 of the shaft l2,upon which the other end of the cable winds which raises the door 5, andalso for the reason that the end of the cable opposite the door 5, istensioned and slack- IOO llO

cned by its passage around the pulleys 18 and 19 on the front end board,and around pulleys 16, 16 and 16L on the rear end board of the Wagonbody. Any equivalent guides may be substituted or the pulleys 16, 16 and16"'. These devices for tensioning the portion of the cable opposite thedoor 5, constitute the distinguishing features ot' the presentinvention, over that shown in the patents above referred to; and it willbe apparent that the improvement affords simple and effective means forcausing one ot' the doors to close slightly in advance of the otherdoor.

It will be observed that this device is distinguished from that shown inmy Patent #823,253, noted above in that I employ in this device a singlechain having both ends connected to the Winding shat or drum, and soarranged that a strand of the chain is provided tor closing each door,that is, acha-in or cable for each door, effecting a more rapid closingof the doors, yet with the tensioning devices shown and described, onedoor is closed slightly in advance o the other so as to insure the doorsbeing brought to a perfect closed position.

In using the term cable in the description and claims, I desire it to beunderstood that I use the same as a generic term to cover a rope, Wirecable, chain or other flexible connecting element.

What I claim and desire to secure by Letters Patent isz- 1. In adumping-wagon, the combination with oppositely-disposed hinged doors, ofa shaft constituting a winding drum mounted in bearings at the front ofthe wagon, and having portions ot diierent diameters, a single cabledoubled to form two strands and connected at its ends to differentdiameter portions of said winding-drum, dill'erent strands et' saidcable extending under the diiferY ent doors, pulleys mounted on thefront end board of the wagon and over which one strand of said cableextends, and means for operating the winding-drum.

2. 1n a dumping-wagon, the combination With a hopper provided withhinged doors, o1 a shaft constituting a windingr drum having differentdiameters and supported in bearings carried by the hopper, a singlecable having its ends connected to different diameters of the shaft anddoubled to form a strand for each door, means connected to the shaft foroperating the latter of the cable thereon, and means comprising guidescarried on one end of the hopper and over which one .strand of saidcable is trained whereby said strand is tensioned as the drum isoperated.

ln a dumping wagon, the combination with a hopper provided with hingeddoors, ol' a shaft journaled in bearings ou one end of said hopper, asingle cable tor operating both doors, said cable having its ends both.connected to said shaft, and doubled to form a strand underneath eachdoor, means whereby one strand of said cable is caused to wind on theshaft at a greater rate of speed than the other strand of thecable,'a11d means for tensioning that strand ot the cable that travelsat the lesser rate ot speed.

4. In a dumping Wagon, the combination with a hopper provided withhinged doors, of a shaft journaled in bearings at one end of saidhopper, a cable doubled to form strands and having both ends connectedto said shaft and a strand of said cable extending underneath each door,means whereby one strand of said cable is caused to wind on said shaftat a greater rate of speed than the other strand, and means at each endof the hopper' for tensioning that strand of the cable which travels atthe lesser rate of speed.

In testimony whereof I aix my signature in the pres ence of twowitnesses.

PETER BLATT.

Witnesses 1 E. M. BLATT, PERRY H. Pirrmlson.

to wind both strands

